The Washington Redskins have signed offensive tackle Cole Pemberton to their practice squad, a person with knowledge of the situation confirmed Tuesday afternoon.

The 6-foot-7, 308-pound Pemberton played college ball at Colorado State but went undrafted in 2010. He signed with the Houston Texans in January of 2011, but didn’t appear in a game for the Texans this season.

The Redskins are looking for help along the offensive line with left tackle Trent Williams expected to miss the remainder of the season while serving a suspension for failing multiple drug tests.

The Redskins are expected to start either eight-year veteran Sean Locklear or rookie Willie Smith at left tackle in place of Williams this Sunday.

The only other tackles on the roster are starting right tackle Jammal Brown, and Tyler Polumbus, who signed with the team last month and appeared in one game, starting at left guard.

Pemberton is the second player with Houston and Colorado State roots that has signed with the Redskins in the last 30 days.

The team on Nov. 7 signed wide receiver David Anderson, who also played at Colorado State and for Houston, where offensive coordinator Kyle Shanahan held the same position from 2008 to 2009 before coming to Washington last season.

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